摘要
实验研究了空燃比和涡流比对汽油机油耗率、循环波动率、放热率和表观火焰传播速度的影响,介绍了根据实测放热规律计算火焰传播速度的方法。实验和计算表明,空燃比增加,放热率和火焰速度减慢;而一个适中的涡流比即能得到较快的放热率和火焰速度。
In this paper,the effects of air-fuel ratio and swirl ratio on fuel consumption,cyclic variation,
rate of heat release and apparent velocity of flame propagation are experimentally studied in a gasoline
engine,and the method of computing flame speed based on heat release diagram is introduced.The
tests and calculations indicate that the rate of heat release and the flame speed are decreased when
A/F iS increased,and they become faster when a moderate swirl ratio is used.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1992年第3期53-58,共6页
Journal of Xi'an Jiaotong University
关键词
放热率
涡流比
汽油机
空燃比
air-fuel ratio
swirl ratio
apparent flame speed
gasoline engine
